Improvement in moulding sash-weights



@i c we abated tant @met @Bt-fm.

WILLIAM FERGUSON AND JAMES ANDERSON, OF NEW YORK, N. Y.

Letters Patent No. 87,832, dated March 16, 1869.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whomit may concer-n Beit known that we,WILLLAM FERGUSON and JAMESANDERSON, of New York, in the county of New York,

This invention relates to an improved method of moulding sash-weights,for casting said weights, and moulds forthe same, whereby it is designedto provide a more simple and expeditious mode of moulding, and toproduce smoother and better weights, especiallyv in the formation of theeyes of the same.

Figure 1 represents a plan view of a metallic flask, or mould, designedfor casting the ends in which the eyes are formed, and for forming thesaid eyes;

vFigure 2 represents a plan view of the same as placed on themoulding-board, with the wood patterns inserted and Figure 3 representsa longitudinal section of the same, when packed in a sand mould.

Similar letters of reference indicate corresponding parts. Y

A represents a metallic flask, made in two parts, and properly shaped toformthe eyes, and the ends of the Weights in which they are formed g andi B represents plainpatterns to be inserted in the holes in the saidflask, around which we pack the green sand to form the mould for thebalance of the weight.

The said flask being placed on the mould-board, as represented in lig.2, together with the nowel C, and the sand packed therein in theordinary manner.

We make a parting at the point a, where the ends of the weights begin tocurve, and form the balance of the mould in a cope, which may be readilywithdrawn, for'the withdrawal of the patterns B, and which being againplaced thereon, after the withdrawal of the said patterns, completes themould, and the weights may be cast in a vertical position.

This method presents an improvement over either the sand or metallicmoulds made in two parts, and parted in the longitudinal direction oftheweights, which causes fins, or ridges to form all around them, and themetal asks so formed, soon warp, and become worthless; whereas' iu thesemoulds, there is not a sufficient amount of metal'cast into the metalportion, to cause them to warp, and the sand is packed so tightly uponthe top of the flask around the moulds, that fins will not form. l

Any suitable number of these metal asks may be placed together 011 themould-board, and keyed up within the nowel, by which the moulds may beformed very rapidly.

Having thus described our invention,

We claim as new, and desire to secure by Letters Patent- The improvedmethod, herein described, of moulding sash-weights, by means of themetal mould A, and plain patterns B, arranged aud operating in themanner set forth, for the purpose speciiied.

The above specification of our invention signed hy us, this 24th day ofNovember, 1868.

WILLIAM FERGUSON. JAMES ANDERSON. Witnesses:

FRANK BLOOKLEY, ALEX. F. RoBER'rs.

